Lawrence wrote:
> No, this is easily explained as a recent Genghis Khan effect, especially
> since the extended haplotypes themselves point to a recent origin. Since
> Basque culture is matriarchal, it is easy to see how they would preserve
> their language even if their men were lost (e.g., in war, plague, or famine)
> and replaced by outsiders.

You're apparently trying to have it both ways. A society that is
culturally open to male replacement is simply a mirror of the
male population around it. It does not select and *amplify* one
component thereof.

I wrote:
> > Genetic input from outside would increase, rather than
> > decrease, the genetic diversity among the Basques.

Lawrence replied:
> No, just the opposite. Again, a small, matrilineally based culture is very
> susceptible to a Genghis Khan effect.

Sorry, but it just doesn't fly. Genetic input from the outside always
and without fail increases the genetic diversity. You have to assume
there is *no* input from the outside, as well as patriarchal power, if
you want to invoke a self-perpetuating saturated male population.